基于自抗扰控制的导弹电液舵机系统研究  

Study on Missile Electro-hydraulic Actuator System Based on Active Disturbance Rejection Control Method

作　　者：付永领[1] 陈辉[1] 刘和松[1] 祁晓野[1] 

机构地区：[1]北京航空航天大学自动化科学与电气工程学院,北京100191

出　　处：《宇航学报》2010年第4期1051-1055,共5页Journal of Astronautics

基　　金：国家自然科学基金资助项目(50675009)

摘　　要：针对导弹电液舵机伺服系统中的高非线性、模型参数时变性等复杂因素,首先建立了舵系统的数学模型,将负载变化和不确定性扰动视为一个综合总扰动项,然后利用扩张状态观测器(ESO)对其进行观测和补偿,并基于自抗扰控制(ADRC)技术设计了一个不依赖于数学模型的控制器。采用该方法设计的控制器不仅能满足系统对快速性和稳态精度的要求,而且有效抑制了负载变化和不确定性扰动对系统的影响。仿真结果表明系统有较强的鲁棒性和适应性,验证了该控制方案的可行性和有效性。Aiming at the high nonlinear and time-varying parameters characters of missile electro-hydraulic actuator servo system,the model of actuator system was established firstly,in which diverse rudder load and uncertain external disturbance were regarded as one integrated total disturbance.Using extended states observer（ESO）,a new observer was proposed to observe and compensate the total disturbance,so a novel controller without an explicit mathematical model was designed based on active disturbance rejection control（ADRC）.The designed controller not only satisfies the rapid and steady-state accuracy demands,but also effectively resists to the change of the rudder load and external disturbance.Simulation results show that ADRC controller studied in this paper has stronger robustness and adaptability,and demonstrate the feasibility and effectiveness of proposed method.

关 键 词：电液舵机伺服系统 扩张状态观测器 自抗扰控制 鲁棒性 适应性 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]